Ronald Reagan had Alzheimers and Dementia when he was still president.

When Reagan was in his final years, he had to be reminded of basic facts , like, where he was. Or what was happening.

He was completely out of it, by time of his final 2 years in office.
He barely had any idea what was happening, anywhere.
In fact, in Reagan's final years he was basically just being propped up as if by strings, and he would just read the teleprompter.

All of this seems completely lost on modern Republicans , when they talk about Biden's age.

Reagan was considered to be , basically, a (good-natured) idiot by colleagues .
He couldn't be expected to hold a candle to any foreign leader who had any intellectual merit, and have any real meaningful discussion.

He was considered a bumbling idiot, by , frankly , everyone left and right.
It took 20 years until conservatives started idolizing him, in a revisionist version of history. Which some how tries to paint Reagan as being sane, and having his senses about him.

Do any of you who relentlessly beat on the drum of Biden's apparent ineptitude even have a basic grasp of American history of the last 30 years?